Connector with flange for limiting buckle propagation comprising a differential pressure valve for underwater fluid-transport pipe

Abstract

A junction part having a differential pressure valve () for an undersea fluid transport pipe, the valve having a valve body () with an internal chamber () opening out at one end into the pipe and at another end to the outside, a piston () arranged to subdivide the internal chamber into an admission chamber () and a discharge chamber (), the piston being movable between an open position where admission chamber and the discharge chamber communicate with each other, and a closed position where the admission chamber and the discharge chamber are scaled from each other, a rating screw () screwed into the valve body and including a bore () within which there slides a rod () of the piston (), and at least one hole () opening out into the discharge chamber and open to the outside, and a spring () rated so as to hold the piston in the closed position below a predetermined threshold pressure inside the admission chamber.